Smoke exhaust device for fire engineering

Abstract

The utility model discloses a fire-fighting engineering smoke exhaust device which comprises a smoke exhaust pipe, a plurality of ventilation openings are formed in the smoke exhaust pipe and evenly distributed on the front end face of the smoke exhaust pipe, a plurality of limiting assemblies are arranged around the ventilation openings, the limiting assemblies evenly surround the ventilation openings, and the limiting assemblies are arranged on the front end face of the smoke exhaust pipe. And the rear end surface of the limiting component is fixedly connected with the front end surface of the smoke exhaust pipe. The smoke exhaust device has the beneficial effects that the smoke exhaust device is convenient to carry and install and can be matched with the installation of exhaust fences or exhaust fans of various specifications.

Description

Technical Field

[0001] This utility model relates to the technical field of fire protection engineering, and in particular to a smoke exhaust device for fire protection engineering. Background Technology

[0002] Fire exhaust ducts are large-scale fire protection facilities, and their large size makes installation difficult. In addition, most smoke exhaust devices have ventilation openings for installing exhaust grilles or exhaust fans, so multiple processes such as cutting are required according to the different sizes of exhaust fans or exhaust grilles, which is extremely inconvenient. Utility Model Content

[0003] This utility model aims to overcome the shortcomings of existing technologies, such as cumbersome handling and installation and inability to be installed with various specifications of exhaust grilles or exhaust fans. It provides a fire protection engineering smoke exhaust device that is easy to handle and install and can be installed with various specifications of exhaust grilles or exhaust fans.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A smoke exhaust device for fire protection engineering includes a smoke exhaust pipe with ventilation openings. Several ventilation openings are evenly distributed on the front end face of the smoke exhaust pipe. Several limiting components are arranged around the ventilation openings and are evenly surrounding the ventilation openings. The rear end face of the limiting components is fixedly connected to the front end face of the smoke exhaust pipe.

[0006] During installation, first determine the number and location of exhaust pipes according to the required installation range and direction. Then, connect and fix the exhaust pipes end to end with fasteners. Next, open the ventilation openings according to the required location for installing the exhaust grille or exhaust fan. Finally, fix the exhaust grille or exhaust fan to the exhaust pipe with limiting components. This achieves the purpose of convenient transportation and installation and can be used with exhaust grilles or exhaust fans of various specifications.

[0007] Preferably, a limiting ring is provided around the ventilation opening. The limiting ring surrounds the ventilation opening and is positioned between the ventilation opening and the limiting component. The limiting ring is fixedly connected to the front end face of the exhaust pipe. The limiting ring can limit the position of the exhaust grille or exhaust fan corresponding to the ventilation opening.

[0008] Preferably, the limiting assembly includes a fixed plate, a movable support plate, and a fixing screw. The fixed plate has an L-shaped cross-section, with all L-shaped openings facing the ventilation opening. The rear end face of the fixed plate is fixedly connected to the front end face of the exhaust pipe. The movable support plate passes through the outer side of the fixed plate and is positioned within the L-shaped opening of the fixed plate, engaging with the fixed plate. The fixing screw is positioned within the L-shaped opening of the fixed plate, passes through the movable support plate, and contacts the front end face of the exhaust pipe. The fixing screw is threadedly connected to the movable support plate. The movable support plate supports the exhaust grille or exhaust fan, and the fixing screw secures the movable support plate.

[0009] Preferably, the fixed plate has several through holes evenly distributed on it, the shape of which corresponds to the shape of the movable support plate. The movable support plate passes through the first through hole and is placed inside the L-shaped opening of the fixed plate, where it is engaged with the fixed plate. The movable support plate also has several through holes, through which a fixing screw passes and contacts the front end of the exhaust pipe, and is threadedly connected to the movable support plate. The pad is placed inside the L-shaped opening of the fixed plate, with its front end fixedly connected to the rear end of the movable support plate. The first through hole allows adjustment of the movable support plate according to the thickness of the exhaust grille or exhaust fan, while the second through hole allows adjustment of the fixing screw's position according to the length of the movable support plate. The pad increases friction against the exhaust grille or exhaust fan, improving stability.

[0010] Preferably, the ventilation opening is provided with a cover plate and a connecting ring. The shape of the cover plate corresponds to the shape of the ventilation opening, and the connecting ring is placed on the front end face of the cover plate. The cover plate is fixedly connected to the inner sidewall of the ventilation opening through the connecting ring. The cover plate and connecting ring facilitate the sealing of ventilation openings that do not require ventilation, while the connecting ring facilitates the opening of the ventilation opening.

[0011] Preferably, the smoke exhaust pipe has an outer edge at both its left and right ends, which respectively surrounds the left and right ends of the outer surface of the smoke exhaust pipe and is fixedly connected to the outer surface of the smoke exhaust pipe. The outer edge has several mounting holes evenly distributed on it. The outer edge and the mounting holes facilitate the connection between smoke exhaust pipes, expand the scope of the fire protection project, and also allow for a reduction in the length of the smoke exhaust pipe, making it easier to transport and install.

[0012] The beneficial effects of this utility model are: convenient handling and installation; it can be used with various specifications of exhaust grilles or exhaust fans; the limiting ring can limit the position of the ventilation opening corresponding to the exhaust grille or exhaust fan; the movable support plate can support the exhaust grille or exhaust fan, and the fixing screw can fix the movable support plate; through hole one can adjust the movable support plate according to the thickness of the exhaust grille or exhaust fan, and through hole two can adjust the fixing position of the fixing screw according to the length of the movable support plate; the pad can increase the friction on the exhaust grille or exhaust fan and improve the stability; the cover plate and connecting ring facilitate the sealing of ventilation openings that do not require ventilation, and the connecting ring facilitates the opening of ventilation openings; the outer edge and the mounting holes on the outer edge facilitate the connection between smoke exhaust pipes, which can expand the scope of fire protection engineering, and at the same time facilitate the reduction of the length of the smoke exhaust pipe for convenient handling and installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is the front view of this utility model;

[0015] Figure 3 yes Figure 2 A cross-sectional view of AA;

[0016] Figure 4 yes Figure 2 A cross-sectional view of BB;

[0017] Figure 5 yes Figure 3 A magnified view of detail C;

[0018] Figure 6 yes Figure 4 Details of D's Fang Datong.

[0019] In the diagram: 1. Exhaust pipe, 2. Ventilation opening, 3. Fixing plate, 4. Movable support plate, 5. Fixing screw, 6. Through hole one, 7. Through hole two, 8. Pad, 9. Cover plate, 10. Connecting ring, 11. Limiting ring, 12. Outer edge, 13. Mounting hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 and Figure 2 In one embodiment, a fire protection engineering smoke exhaust device includes a smoke exhaust pipe 1, a ventilation opening 2 on the smoke exhaust pipe 1, a plurality of ventilation openings 2 evenly distributed on the front end face of the smoke exhaust pipe 1, a plurality of limiting components are provided around the ventilation openings 2, the limiting components are evenly surrounding the ventilation openings 2, and the rear end face of the limiting components is fixedly connected to the front end face of the smoke exhaust pipe 1.

[0022] like Figure 1 and Figure 2 As shown, a limiting ring 11 is provided around the ventilation opening 2. The limiting ring 11 surrounds the ventilation opening 2 and is placed between the ventilation opening 2 and the limiting component. The limiting ring 11 is fixedly connected to the front end face of the exhaust pipe 1.

[0023] like Figures 1 to 5 As shown, the limiting assembly includes a fixed plate 3, a movable support plate 4, and a fixing screw 5. The fixed plate 3 has an L-shaped cross-section, and all L-shaped openings of the fixed plate 3 face the ventilation opening 2. The rear end face of the fixed plate 3 is fixedly connected to the front end face of the exhaust pipe 1. The movable support plate 4 passes through the outer side of the fixed plate 3 and is placed inside the L-shaped opening of the fixed plate 3. The movable support plate 4 is snapped into the fixed plate 3. The fixing screw 5 is placed inside the L-shaped opening of the fixed plate 3. The fixing screw 5 passes through the movable support plate 4 and contacts the front end face of the exhaust pipe 1. The fixing screw 5 is threadedly connected to the movable support plate 4.

[0024] like Figure 1 , Figure 3 and Figure 5 As shown, the fixed plate 3 has several through holes 6, which are evenly distributed on the fixed plate 3. The shape of the through holes 6 corresponds to the shape of the movable support plate 4. The movable support plate 4 passes through the through holes 6 and is placed in the L-shaped opening of the fixed plate 3. The movable support plate 4 is snapped into the fixed plate 3 through the through holes 6. The movable support plate 4 has several through holes 7 and a pad 8. The fixing screw 5 passes through the through holes 7 and contacts the front end face of the exhaust pipe 1. The fixing screw 5 is threadedly connected to the movable support plate 4 through the through holes 7. The pad 8 is placed in the L-shaped opening of the fixed plate 3. The front end face of the pad 8 is fixedly connected to the rear end face of the movable support plate 4.

[0025] like Figure 1 , Figure 4 and Figure 6 As shown, the ventilation opening 2 is provided with a cover plate 9 and a connecting ring 10. The shape of the cover plate 9 corresponds to the shape of the ventilation opening 2. The connecting ring 10 is placed on the front end face of the cover plate 9. The cover plate 9 is fixedly connected to the inner wall of the ventilation opening 2 through the connecting ring 10.

[0026] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the exhaust pipe 1 has an outer edge 12 on both the left and right ends. The outer edge 12 surrounds the left and right ends of the outer side of the exhaust pipe 1, and is fixedly connected to the outer side of the exhaust pipe 1. The outer edge 12 has a number of mounting holes 13, which are evenly distributed on the outer edge 12.

[0027] During installation, first determine the number and location of the exhaust pipes 1 according to the required installation range and direction. Then, connect and fix the outer edges 12 of the exhaust pipes 1 to the corresponding locations using fasteners and mounting holes 13. Next, install the ventilation openings 2 at the locations of the exhaust grilles or exhaust fans as needed, breaking the connection between the corresponding cover plates 9 and connecting rings 10 to allow the ventilation openings 2 to communicate with the interior of the exhaust pipes 1. Then, place the exhaust grilles or exhaust fans between the corresponding fixing plates 3, with the ventilation holes of the exhaust grilles or exhaust fans corresponding to the ventilation openings 2. The limiting rings 11 prevent the exhaust grilles or exhaust fans from sliding. Then, according to the thickness of the exhaust grilles or exhaust fans, allow the movable support plates 4 to pass through the corresponding through holes 1 6, so that the position with the pads 8 contacts the lower end face of the exhaust grilles or exhaust fans. After the exhaust grilles or exhaust fans are supported around them, fix them to the exhaust pipes 1 with fixing screws 5 passing through the corresponding through holes 2 7. This achieves the purpose of convenient handling and installation, and can be used to install exhaust grilles or exhaust fans of various specifications.

Claims

1. A smoke exhaust device for fire protection engineering, characterized in that: The invention comprises a smoke exhaust pipe (1), wherein the smoke exhaust pipe (1) is provided with a ventilation opening (2), wherein a plurality of the ventilation openings (2) are provided and are evenly distributed on the front end surface of the smoke exhaust pipe (1), wherein a plurality of limiter components are provided around the ventilation openings (2), wherein the limiter components evenly surround the ventilation openings (2), and wherein the rear end surface of the limiter component is fixedly connected to the front end surface of the smoke exhaust pipe (1).

2. A fire engineering smoke exhaust device according to claim 1, characterized in that: A limiting ring (11) is provided around the ventilation opening (2), the limiting ring (11) surrounds the ventilation opening (2), the limiting ring (11) is placed between the ventilation opening (2) and the limiting assembly, and the limiting ring (11) is fixedly connected to the front end surface of the smoke exhaust pipe (1).

3. A fire engineering smoke exhaust device according to claim 2, characterized in that: The limiting assembly comprises a fixed plate (3), a movable support plate (4) and a fixing screw (5); the cross-sectional shape of the fixed plate (3) is L-shaped; the L-shaped openings of the fixed plate (3) all face the ventilation opening (2); the rear end face of the fixed plate (3) is fixedly connected to the front end face of the smoke exhaust pipe (1); the movable support plate (4) passes through the outer side face of the fixed plate (3) and is placed in the L-shaped opening of the fixed plate (3); the movable support plate (4) is clamped with the fixed plate (3); the fixing screw (5) is placed in the L-shaped opening of the fixed plate (3); the fixing screw (5) passes through the movable support plate (4) and contacts the front end face of the smoke exhaust pipe (1); the fixing screw (5) is threadedly connected to the movable support plate (4).

4. A fire engineering smoke exhaust device according to claim 3, characterized in that: The fixing plate (3) is provided with a through hole (6), and there are a plurality of through holes (6) uniformly distributed on the fixing plate (3). The shape of the through hole (6) corresponds to the shape of the movable support plate (4). After the movable support plate (4) passes through the through hole (6), it is placed in the L-shaped opening of the fixing plate (3). The movable support plate (4) is clamped with the fixing plate (3) through the through hole (6). The movable support plate (4) is provided with a through hole (7) and a pad (8). There are a plurality of through holes (7). After the fixing screw (5) passes through the through hole (7), it contacts the front end surface of the smoke exhaust pipe (1). The fixing screw (5) is threadedly connected to the movable support plate (4) through the through hole (7). The pad (8) is placed in the L-shaped opening of the fixing plate (3), and the front end surface of the pad (8) is fixedly connected to the rear end surface of the movable support plate (4).

5. A fire engineering smoke exhaust device according to claim 1, characterized in that: A cover plate (9) and a connecting ring (10) are provided in the ventilation opening (2); the shape of the cover plate (9) corresponds to the shape of the ventilation opening (2); the connecting ring (10) is disposed on the front end surface of the cover plate (9); and the cover plate (9) is fixedly connected to the inner side wall of the ventilation opening (2) via the connecting ring (10).

6. A fire engineering smoke exhaust device according to claim 1, characterized in that: The smoke exhaust pipe (1) is provided with outer edges (12) on both left and right ends, the outer edges (12) respectively surround the left and right ends of the outer side surface of the smoke exhaust pipe (1), the outer edges (12) are fixedly connected to the outer side surface of the smoke exhaust pipe (1), and the outer edges (12) are provided with a plurality of mounting holes (13), and the mounting holes (13) are evenly distributed on the outer edges (12).

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